Uncertainty accompanies our life processes and covers almost all fields of scientific studies.
Two general categories of uncertainty, namely, aleatory uncertainty and epistemic …

Crowdsourcing systems on the World-Wide Web Page 1 86 CommuniCations oF the aCm |
APRIL 2011 | vOL. 54 | nO. 4 review articles social systems, social search, social media …

With the ubiquity of mobile devices, spatial crowdsourcing is emerging as a new platform,
enabling spatial tasks (ie, tasks related to a location) assigned to and performed by human …

Some queries cannot be answered by machines only. Processing such queries requires
human input for providing information that is missing from the database, for performing …

Some complex problems, such as image tagging and natural language processing, are very
challenging for computers, where even state-of-the-art technology is yet able to provide …

Crowdsourcing is widely accepted as a means for resolving tasks that machines are not
good at. Unfortunately, Crowdsourcing may yield relatively low-quality results if there is no …

Since Jeff Howe introduced the term Crowdsourcing in 2006, this human-powered problem-
solving paradigm has gained a lot of attention and has been a hot research topic in the field …

Given a large set of data items, we consider the problem of filtering them based on a set of
properties that can be verified by humans. This problem is commonplace in crowdsourcing …

Many works have applied crowdsourcing to entity matching (EM). While promising, these
approaches are limited in that they often require a developer to be in the loop. As such, it is …

We present Jabberwocky, a social computing stack that consists of three components: a
human and machine resource management system called Dormouse, a parallel …